It takes something to upstage Usain Bolt in an Olympic Stadium. Then again, there is only one long-distance runner quite like Mo Farah.
The British great came out on to the track yesterday after Bolt had absorbed the adulation of the London crowd just by showing up and coasting to victory in his 100m heat at the world championships.
For Bolt, it was easy. Farah still had one of the toughest races of his life coming up - an all-out assault by the best African runners to wear him down to sap his finishing speed. There was even a stumble on the last lap that could have felled him. It didn't.
"I am mentally strong," said the 34-year-old.
There was no doubt about that after a final kick that left him with time to cross the finish line with arms outstretched and the same look of amazement in his eyes he had when winning his first Olympic gold in the same stadium five years ago.